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noodle_poodle's avatar

How do I properly re-size an image for submission to Threadless?

Asked by noodle_poodle (1614 points ) February 19th, 2013

Hi there, I am having some difficult understanding how to get my image to fulfill the submission guidelines. The image needs to be high resolution and yet they have specified a file size of no more than 845 pixels wide, 445 pixels tall, and 72 dpi. When I create a new image in photoshop and then drop my design in there I have to use the re-size tool to make it small enough to fit in and it looks ‘pixely’ and crap. I have no idea how to set the dpi at all. If someone could help technologically retarded me out with this I would be most greatful.

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6 Answers

jaytkay's avatar

How are you creating the image before you “create a new image in photoshop and then drop my design in there”?

Threadless used to be located on my block. They outgrew the building and moved. Yay Threadless!!

noodle_poodle's avatar

Sorry as in opening a new file size. when I created the design I didn’t have threadless in mind and I thought the easiest way to get it to be the right size would be to open a new photoshop file that was the right dimensions to fill the criteria and then paste the design into it, then flatten the image. But I don’t actually know how to set the dpi or how to get an image that small to look good. I mean usually things look ‘blocky’ because I have tried to make them bigger not because I have shrank them. It could be just tiredness but its not making much sense to me today.

noodle_poodle's avatar

I drew it originally on paper but also have a livetrace version in illustrator.

dabbler's avatar

Image / Scale

You can input height/width/dpi.

I don’t understand why they’d specify dpi, though, it is an irrelevant spec for a web site.
Your picture will show up with the pixel dimensions on the user’s screen, no dpi involved.

I’ll suggest first scaling the height and width of your image to the spec and see what that looks like, never mind dpi.

zensky's avatar

http://www.irfanview.com/

Open in this.

Go to Image resize/resample

Type in the specs.

Earthgirl's avatar

It’s very easy.Copying and pasting won’t work if you are changing the resolution.
I would do it this way. FIrst go to image>duplicate. That way you have a copy to play around with and won’t be degrading your original when you convert the resolution. Changing your resolution to a lower resolution will result in a lower quality image should you want to later resize it up to 300dpi. You probably know that so you were smart to copy and paste. At least you didn’t damage your original artwork by scaling it down.

Now that you have a duplicate go to image>size and type in your new resolution.Don’t change the width or height dimensions. Photoshop will do that for you automatically. Just be sure that scale styles, constrain proportions and resample image are all checked. Click ok.
Now go back to image.size again and see what your pixel dimensions are. If the image exceeds the threadless limitation you will have to scale down your image. Whichever measurement is too large, be it the width or the length change that to the threadless maximum allowed size. Again, make sure that constrain proportions is checked otherwise you could end up changing the look of your picture. If both measurements are too large change the one that is most over the limitation and just change that.

Now rename your image however you like so you can differentiate from your original higher dpi art. Good luck. Just curious, did you create the image on the computer or did you do it by hand and scan it?

My guess is that he reason you got bad results from cutting and pasting is that you degraded the image by changing the resolution. If you take a 300dpi image and make it 72 you lose a lot of information.(Think of it as similar to converting an audio file to an mp3 which is a lossy formaat) It resizes the image and resamples it so you lose all the detail. If you then size it up again it becomes all pixelated because you have already lost all of the detail The way I am telling you to do it it will retain as much quality as possible while still fitting the guidelines.

It’s a good idea to duplicate a file whenever you’re going to do anything experimental on it. Sure you can undo but this way you can look at the original and the copy side by side and see if you like the changes. Plus you cannot get back information that you lose when you change the resolution. The undo feature cannot recover what has been lost.

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